FDC37M81x SMSC Corporation, FDC37M81x Datasheet - Page 13

• Manufacturer Part Number: FDC37M81x
• Description: PC98/99 Compliant Enhanced Super I/O Controller
• Manufacturer: SMSC Corporation

Trickle Power Functionality
When the FDC37M81x is running under VTR
only, the PME wakeup events are active and (if
enabled) able to assert and nIO_PME pin active
low. The following lists the wakeup events.
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Maximum Current Values
Refer to the “Operational Description” section for
the maximum current values.
The maximum VTR current, I
outputs open.
UART1 Ring Indicator
UART2 Ring Indicator
Keyboard data
Mouse data
The total maximum current
TR
, is given with all
13
for the part is the unloaded value PLUS the
maximum current sourced by all pins that are
driven by VTR.
The maximum VCC current, I
outputs open (not loaded).
Power Management Events (PME/SCI)
The FDC37M81x offers support for Power
Management Events (PMEs), also referred to as
System Control Interrupts (SCI) events.
terms PME and SCI are used synonymously
throughout this document to refer to the
indication of an event to the chipset via the
assertion of the nIO_PME output signal on pin 4.
See the “PME Support” section.
CC
, is given with all
The